Based on the table below: $(10$ marks$)$

a$.$ Create a GANTT chart.

b$.$ Conduct both a forward and backward pass using AON notation. What is the estimated total duration for the project?

c$.$ Identify all paths through the network. Which is the critical path?

d$.$ Which activities have slack time?

e$.$ Identify all burst activities and merge activities.

Activity Predecessors Duration $($Days$)$

A None $4$

B A $($FS$2)4$

C A $($SS$)2$

D A $6$

E C $($SS$1)2$

F B $4$

G E $($FF$1)2$

H E$,$ F $2$

I D $3$

J G$,$ H$,$ I $4$